USB MOD2 User`s Manual
Contents
1. The USBMOD2 is warranted to be free from manufacture defects for a period of 12 months from the date purchase Subjecting the device to conditions beyond the Absolute Maximum Ratings listed above will invalidate this warranty The USBIO24 is a static sensitive device anti static procedures should be used in the handling of this device All USBIO24 units are extensively tested at time of manufacture to be free of defects Ravar is committed to providing products of the highest quality Should you experience any product quality issues with this product please contact our quality assurance manager at the above address Disclaimer This product and its documentation are provided as is and no warranty is made or implied as to their suitability for any particular purpose Ravar Pty Ltd will not accept any claim for damages arising from the use of this product or documentation This document provides information on our products and all efforts are made to ensure the accuracy of the information contained within The specifications of the product are subject to change and continual improvement Ravar Pty Ltd Page 10 of 10 http www ravar net2. SYSTEM PROPERTIES 8 CDROM H E Disk drives c m Display adapters aS Floppy disk controllers 0 23 Hard disk controllers ed Keyboard coe Modem co Monitors HS Mouse g 89 Network adapters E9 Ports COM amp LPT i Communications Port COM1 JI Communications Port COM2 9 ECP Printer Port LPT1 i wo Printer Port LPT 2 9 USB Serial Port COM3 The Com port number will vary depending on the number of existing com ports on your computer and the number of USBMODs connected to your system To install the Virtual Com Port drivers download the driver from our website or the ftdichip com website and unzip the files to a local directory Then connect the USBMOD and windows will automatically ask for the driver select to specify a location and browse to the directory where you have unzipped the files Use the Non Plug amp Play driver for the USBMOD to avoid a delay on connecting the USBMOD Ravar Pty Ltd Page 6 of 10 http www ravar net Wa USB MOD User s Manual Once the Virtual Com Port is installed it can be programmed exactly as a regular serial com port using the MSComm control from Visual Basic or API calls from C or other languages Set the com port to the same number as appears in the Device Manager the baud rate stop bits parity etc are not used as the device always runs at full speed The Direct DLL driver is installed in a similar manner but using the alternative download from the website Pr
3. pr USB MOD User s Manual USB MOD2 USB Plug and Play Parallel 8 Bit FIFO Development Module The USBMOD2 is a low cost integrated module for transferring data to from a peripheral and a host P C at up to 8 Million bit 1 Megabyte per second Based on the FTDI FT8U245 USB FIFO Fast Parallel Data Transfer IC it s simple FIFO like design makes it easy to interface to an CPU MCU either by mapping the device into the memory I O map of the PCU using DMA or controlling the device via IO ports The USBMOD2 is ideal for rapid prototyping and development by offering a complete plug and play solution MODULE FEATURES e Single module High Speed USB e No external passive components UART solution required e Based on FTDI FT8U245 USB e Module powered from USB bus FIFO Fast Parallel Data up to 60mA from USB for user Transfer IC application e Integrated Type B USB e 32 pin Dual In Line Package Connector Ideal for prototyping e On board 6MHz Crystal e Fits into a standard 32 pin 600mil IC Socket e Provision for external EEPROM for USB enumeration data Ravar Pty Ltd Page 1 of 10 http www ravar net Wa USB MOD User s Manual FT8U245 IC FEATURES e Single Chip Multi Function Data e Integrated 3 3v Regulator No Transfer Solution External Regulator Required e Send Receive Data over USB at e UHCI OHCI Compliant up to 1 Mb Sec e USB 1 1 Specification Compliant e 384 byte receive buffer 128 byte transmit buf
4. 0 C Description Min Max Units Condition VCC Operating Supply Voltage 44 1525 V Iccl Operating Supply Current 50 mA Normal Operation Icc2 Operating Supply Current 250 uA USB Suspend Iohl Digital IO Pins Source Current 4 mA Voh VCC 0 5V Toll Digital IO Pins Sink Current 8 mA Vol 0 5V Vohl Input Voltage Threshold Low 06 V Voll Input Voltage Threshold High 2 V VDif USB Differential Input Sensitivity 0 2 V VCom USB Differential Common Mode 0 8 2 5 V URxt USB Single Ended RX Threshold 0 8 2 0 V UVh USB IO Pins Static Output Low 0 3 V RI 1 5k to 3 6V UVI USB IO Pins Static Output High 2 8 V RI 15k to GND Ravar Pty Ltd Page 9 of 10 http www ravar net Wa USB MOD User s Manual Technical Support and Further Information For any questions relating to the USBMOD2 please contact us by Email Fax or Phone email support ravar net Fax 61 755 914364 Ph 61 755 325688 Ravar Pty Ltd Ravar Pty Ltd 5G Jackman Center PO Box 2514 Jackman Street Southport Southport Queensland 4215 Queensland 4215 Australia Australia Product Use Limitations Warranty and Quality Statement The USBMOD2 should not be used in any situation where it s failure or failure of the PC or software controlling it could cause human injury or severe damage to equipment This device is not designed for or intended to be used in any life critical application
5. 24 WR IN Writes the Data Byte on DO D7 into the Transmit FIFO Buffer when WR goes from high to low 25 TXE OUT When high do not write data into the FIFO When low data can be written into the FIFO by strobing WR high then low 26 EEGT OUT When low allows the EEPROM contents to be accessed via the Data Bus 27 EERQ IN Requests the EEPROM contents to be accessed via the Data Bus 28 GND PWR Device Ground Supply Pin 29 NOPIN NO PIN 30 NOPIN NO PIN 31 N C MOUNT Mounting Pin for module USB connector support 32 N C MOUNT Mounting Pin for module USB connector support Ravar Pty Ltd Page 4 of 10 http www ravar net USB MOD 2 User s Manual USB MOD 2 SCHEMATIC wine JOUUDADA MMM PIT d AVAVA I00 LH INXdO2 IUVWAIS CIOW ISA aTOACOW wagsa dGgsn SNId LNOEAE INO IXI LE o O3N33 o_o aTACON FKIFGH3 SO ASH SNId A001 9A dIHO LASTA 001d W dIHOONOIN en 44001 12 http www ravar net Page 5 of 10 Ravar Pty Ltd Driver Installation Your first choice when using the USBMOD is whether you want to use the Virtual Com Port driver or the Direct DLL driver For programming simplicity the best driver is the Virtual Com Port and when installed the USBMOD will appear in the System Properties Device Manager as an USB Serial Port COMn as follows
6. e showing what the various pins are on the module Ravar Pty Ltd Page 3 of 10 http www ravar net Z pr USB MOD User s Manual USBMOD2 PINOUT i MOUNT Mounting Pin for module USB connector support 2 Ng MOUNT Mounting Pin for module USB connector support 3 NO PIN NO PIN 4 NO PIN NO PIN 5 GND PWR Device Ground Supply Pin 6 V PWR Device 4 4 volt to 5 25 volt Power Supply Pin 7 RXF OUT When high do not read data from FIFO When low there is data available in the FIFO which can be read by strobing RD low the high again 8 D7 IO Bi Directional Data Bus Bit 7 9 D6 IO Bi Directional Data Bus Bit 6 10 D5 I O Bi Directional Data Bus Bit 5 11 D4 IO Bi Directional Data Bus Bit 4 12 D3 IO Bi Directional Data Bus Bit 3 13 D2 IO Bi Directional Data Bus Bit 72 14 DI IO Bi Directional Data Bus Bit 71 15 DO IO Bi Directional Data Bus Bit 0 16 GND PWR Device Ground Supply Pin 17 GND PWR Device Ground Supply Pin 18 GND PWR Device Ground Supply Pin 19 EECS I O Optional EEPROM Chip Select 20 EECLK I O Optional EEPROM Clock 21 EEDAT I O Optional EEPROM Data I O 22 V PWR Device 4 4 volt to 5 25 volt Power Supply Pin 23 RD IN Enables Current FIFO Data Byte on DO D7 when low Fetches the next FIFO Data Byte if available from the Receive FIFO Buffer when RD goes from low to high
7. fer for high data e USB VID PID Serial Number throughput and Product Description Strings in external E2PROM e Simple interface to CPU or MCU bus VIRTUAL COM PORT VCP e No in depth knowledge of USB DRIVERS for required as all USB Protocol is e Windows 98 and Windows 98 SE handled automatically within the e Windows 2000 ME XP LC e Windows CE e MAC OS 8 and OS9 e FTDI s Virtual COM port drivers e MAC OS X eliminate the need for USB driver development in most Linux 2 40 and greater cases In the planning or under development e Compact 32 pin 7mm x 7mm D2XX MQFP package USB Direct Drivers DLL S W Interface e Windows 98 and Windows 98 SE e Integrated 6Mhz 48Mhz Clock e Windows 2000 ME XP Multiplier aids FCC and CE compliance For further information regarding the FTDI FT8U245AM USB FIFO Fast Parallel Data Transfer IC please refer to the FT8U245AM Datasheet This datasheet can be found on the Ravar website at http www ravar net Ravar Pty Ltd Page 2 of 10 http www ravar net Wa USB MOD User s Manual As mentioned above in module features the USB MOD2 is in a 32 pin Dual In Line Package This allows the module to fit into a standard 32 pin 600mil IC Socket which makes the module ideal for prototyping and development work Shown in diagram 2 below is the pin out for the USB MOD2 USB MOD2 PINOUT PIN 32 31 COPYRIGHT 2001 BY BEDE DIAGRAM 2 On the following page is the pin out tabl
8. ogramming the Direct DLL driver is by call to the DLL Library functions Please download the Direct DLL programmers guide from the Ravar website Application Notes On the following pages there are schematic drawings showing a sample applications for the USB MOD2 The application uses a micro controller in this case we are using a PIC 16C84 as well as a 93C46 EEPROM chip Ravar Pty Ltd Page 7 of 10 http www ravar net USB MOD 2 User s Manual SAMPLE APPLICATION No 2 Interfacing a PIC16C84 and a 93C46EEPROM Wa NOYNTTA 96366 P PUD Fg29IOId BU1IDJ12 U aypuays uoyvoyddy TOW ISA JOUADADA MMM PIT AE AVAVA 100 LHDIKdOD http www ravar net Page 8 of 10 Ravar Pty Ltd Wa USB MOD 2 User s Manual Absolute Maximum Ratings Storage Temperatur ANAN AA 65 C to 150 C Ambient Temperature Power Applied 2 000000000sasasan 0 C to 70 C VOC Supply V GAS uc ascsvacntedatieusasnetinareensausSencncosancerends 0 5v to 6 00v DC Input Voltage Inputs jag K GG Cie er Dr a GG 0 5v to VCC 0 5v DC Input Voltage High Impedance Bidirectionals 0 5v to VCC 0 5v DC Output Current Outputs pasama ANAKAN AA 24mA DC Output Current Low Impedance Bidirectionals 24mA Power Dissipation agapan yancsstencendevenaxentientashereranesoue 500mW DC Characteristics Ambient Temperature 0 C 7
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